SU1391905A2 - Static mixer for polymeric materials - Google Patents

Description

(61) 1214441

(21) 4073298 / 31-05

(22) 03/06/86

(46) 04/30/88. Bul Number 16

(71) Kiev Polytechnic Institute. 50th anniversary of the Great Oct. Brno socialist revolution

(72) F. G. Gilimov, V.I. Sivetsky, S.O. Pristaylov, B.D. Fedotov, and A.I. Zharov

(53) 678.053.3 (088.8)

(56) USSR author's certificate

No. 1214441, cl. B 29 B 7/32, 1984.

(54) STATIC MIXTURES FOR POLYMERIC MATERIALS (57) The invention relates to equipment for processing polymeric materials and can be used to continuously displace polymer-polymer compositions. The aim of the invention is to increase the mixing efficiency. The static mixer for polymeric materials contains successively located mixing elements, including inlet and outlet separating discs. Each mixing element is supplied

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a transition divider disc mounted between the inlet and outlet divider discs and made with channels along the end surfaces and with the longitudinal channels for their interconnection. The input separating disk is made with a divider, and each of its longitudinal channels is connected to at least two channels on the end surface of the transitional separating disk. The output separating disk is made with longitudinal channels, each of which is connected to at least two channels on the end surface of the transition1

The invention relates to the processing of polymeric materials, can be used for continuous mixing of polymer-polymer compositions and is an improvement of the known device according to the main author. St. No. 1214441.

The aim of the invention is to increase the mixing efficiency.

FIG. 1 shows a static mixer for polymeric materials, a general view; in fig. 2 - tubular element, on the inner and outer surface of which is made cutting in the form of a grid; in fig. 3 shows section A-A in FIG. 2; in fig. 4- scan tube element.

The static mixer for polymeric materials contains sequential mixing elements 1, including input 2 and output 3 separating discs. Each mixing element 1 is provided with a transfer divider 4, installed between the inlet 2 and outlet 3 separating discs and made with channels 5 on the end surfaces and with the longitudinal channels 6 for connecting them together. The input separating disk 2 is made with a divider 7, and each of its longitudinal channels 8 is connected to at least two channels 5 on the end surface of the transitional separating disk 4. The output separating disk 3 is made with longitudinal channels 9, each of which is connected to at least two channels 5 on the end surface of the transitional separating disk 4. The mixer is additionally equipped with working elements 10 placed between the mixing elements 1, made in the form of rods 11 with rigidly fixed on them are coaxial tubular elements 12. On the inner and outer surfaces of the pipe separator disc. The mixer is further provided with working elements arranged between the mixing elements, made in the form of rods with coaxial tubular elements rigidly fixed to them, on the inner and outer surfaces of which the cutting is made in the form of a grid. Static mixer works as follows. A polymer melt with various ingredients under pressure is fed into the housing, where it passes through the channels in the mixing elements. After that, the flow of the polymer melt passes through the cutting. 4 il.

elements 12 made cutting 13 in the form of a grid. Mixing elements 1 are mounted in housing 14 with inlet 15 and outlet 16 holes. The coaxial tubular elements 12 are rigidly secured with pins 17.

Static mixer for polymeric materials works as follows.

Polymer melt with different pressure gradients through the inlet 15 is fed into the housing 14. Polymer melt flow through the channels 8, 5, 6, 9, made respectively

in the input 2, the transition 4 and the output 3 separator disks, it is divided into separate streams that repeatedly intersect each other. Then, the polymer melt flows pass through the cuttings 13, made in the form of a grid on the inner and outer side surfaces of the coaxial tubular elements 12, which are rigidly fixed with pins 17 on the rods 11. Next, the polymer melt flows go to the next mixing element 1 and the cycle repeats. The mixed polymer melt exits the exit hole 16 of the housing 14. When passing through the cutting 13, made in the form of a grid, in the places where the nodes of the grid form, the melt flows repeatedly intersect, which ensures high mixing efficiency.

Claims (1)

Invention Formula Static mixer for polymeric materials by author. St. No. 1214441, characterized in that, in order to increase the mixing efficiency, the mixer is additionally equipped with work elements placed between the mixing elements, made in the form of rods with coaxial rigidly mounted on them Fi.2 12 tubular elements, on the inner and outer surfaces of which are cut in the form of a grid. / 3 2 Aa Phi Phi.